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usbdivar.h revision 1.85
      1 /*	$NetBSD: usbdivar.h,v 1.85 2008/05/25 21:41:35 drochner Exp $	*/
      2 /*	$FreeBSD: src/sys/dev/usb/usbdivar.h,v 1.11 1999/11/17 22:33:51 n_hibma Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to The NetBSD Foundation
      9  * by Lennart Augustsson (lennart (at) augustsson.net) at
     10  * Carlstedt Research & Technology.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #if defined(__NetBSD__)
     35 #include <sys/callout.h>
     36 #endif
     37 
     38 /* From usb_mem.h */
     39 DECLARE_USB_DMA_T;
     40 
     41 struct usbd_xfer;
     42 struct usbd_pipe;
     43 
     44 struct usbd_endpoint {
     45 	usb_endpoint_descriptor_t *edesc;
     46 	int			refcnt;
     47 };
     48 
     49 struct usbd_bus_methods {
     50 	usbd_status	      (*open_pipe)(struct usbd_pipe *pipe);
     51 	void		      (*soft_intr)(void *);
     52 	void		      (*do_poll)(struct usbd_bus *);
     53 	usbd_status	      (*allocm)(struct usbd_bus *, usb_dma_t *,
     54 					u_int32_t bufsize);
     55 	void		      (*freem)(struct usbd_bus *, usb_dma_t *);
     56 	struct usbd_xfer *    (*allocx)(struct usbd_bus *);
     57 	void		      (*freex)(struct usbd_bus *, struct usbd_xfer *);
     58 };
     59 
     60 struct usbd_pipe_methods {
     61 	usbd_status	      (*transfer)(usbd_xfer_handle xfer);
     62 	usbd_status	      (*start)(usbd_xfer_handle xfer);
     63 	void		      (*abort)(usbd_xfer_handle xfer);
     64 	void		      (*close)(usbd_pipe_handle pipe);
     65 	void		      (*cleartoggle)(usbd_pipe_handle pipe);
     66 	void		      (*done)(usbd_xfer_handle xfer);
     67 };
     68 
     69 #if 0 /* notyet */
     70 struct usbd_tt {
     71 	struct usbd_hub	       *hub;
     72 };
     73 #endif
     74 
     75 struct usbd_port {
     76 	usb_port_status_t	status;
     77 	u_int16_t		power;	/* mA of current on port */
     78 	u_int8_t		portno;
     79 	u_int8_t		restartcnt;
     80 #define USBD_RESTART_MAX 5
     81 	u_int8_t		reattach;
     82 	struct usbd_device     *device;	/* Connected device */
     83 	struct usbd_device     *parent;	/* The ports hub */
     84 #if 0
     85 	struct usbd_tt	       *tt; /* Transaction translator (if any) */
     86 #endif
     87 };
     88 
     89 struct usbd_hub {
     90 	usbd_status	      (*explore)(usbd_device_handle hub);
     91 	void		       *hubsoftc;
     92 	usb_hub_descriptor_t	hubdesc;
     93 	struct usbd_port        ports[1];
     94 };
     95 
     96 /*****/
     97 
     98 struct usbd_bus {
     99 	/* Filled by HC driver */
    100 	void			*hci_private;
    101 	const struct usbd_bus_methods *methods;
    102 	u_int32_t		pipe_size; /* size of a pipe struct */
    103 	/* Filled by usb driver */
    104 	struct usbd_device     *root_hub;
    105 	usbd_device_handle	devices[USB_MAX_DEVICES];
    106 	char			needs_explore;/* a hub a signalled a change */
    107 	char			use_polling;
    108 	device_t		usbctl;
    109 	struct usb_device_stats	stats;
    110 	int 			intr_context;
    111 	u_int			no_intrs;
    112 	int			usbrev;	/* USB revision */
    113 #define USBREV_UNKNOWN	0
    114 #define USBREV_PRE_1_0	1
    115 #define USBREV_1_0	2
    116 #define USBREV_1_1	3
    117 #define USBREV_2_0	4
    118 #define USBREV_STR { "unknown", "pre 1.0", "1.0", "1.1", "2.0" }
    119 
    120 	void		       *soft; /* soft interrupt cookie */
    121 #if defined(__NetBSD__) || defined(__OpenBSD__)
    122 	bus_dma_tag_t		dmatag;	/* DMA tag */
    123 #endif
    124 };
    125 
    126 struct usbd_device {
    127 	struct usbd_bus	       *bus;           /* our controller */
    128 	struct usbd_pipe       *default_pipe;  /* pipe 0 */
    129 	u_int8_t		address;       /* device addess */
    130 	u_int8_t		config;	       /* current configuration # */
    131 	u_int8_t		depth;         /* distance from root hub */
    132 	u_int8_t		speed;         /* low/full/high speed */
    133 	u_int8_t		self_powered;  /* flag for self powered */
    134 	u_int16_t		power;         /* mA the device uses */
    135 	int16_t			langid;	       /* language for strings */
    136 #define USBD_NOLANG (-1)
    137 	usb_event_cookie_t	cookie;	       /* unique connection id */
    138 	struct usbd_port       *powersrc;      /* upstream hub port, or 0 */
    139 	struct usbd_device     *myhub; 	       /* upstream hub */
    140 	struct usbd_port       *myhsport;      /* closest high speed port */
    141 	struct usbd_endpoint	def_ep;	       /* for pipe 0 */
    142 	usb_endpoint_descriptor_t def_ep_desc; /* for pipe 0 */
    143 	struct usbd_interface  *ifaces;        /* array of all interfaces */
    144 	usb_device_descriptor_t ddesc;         /* device descriptor */
    145 	usb_config_descriptor_t *cdesc;	       /* full config descr */
    146 	const struct usbd_quirks     *quirks;  /* device quirks, always set */
    147 	struct usbd_hub	       *hub;           /* only if this is a hub */
    148 	int			subdevlen;     /* array length of following */
    149 	device_t	       *subdevs;       /* sub-devices */
    150 };
    151 
    152 struct usbd_interface {
    153 	struct usbd_device     *device;
    154 	usb_interface_descriptor_t *idesc;
    155 	int			index;
    156 	int			altindex;
    157 	struct usbd_endpoint   *endpoints;
    158 	void		       *priv;
    159 	LIST_HEAD(, usbd_pipe)	pipes;
    160 };
    161 
    162 struct usbd_pipe {
    163 	struct usbd_interface  *iface;
    164 	struct usbd_device     *device;
    165 	struct usbd_endpoint   *endpoint;
    166 	int			refcnt;
    167 	char			running;
    168 	char			aborting;
    169 	SIMPLEQ_HEAD(, usbd_xfer) queue;
    170 	LIST_ENTRY(usbd_pipe)	next;
    171 
    172 	usbd_xfer_handle	intrxfer; /* used for repeating requests */
    173 	char			repeat;
    174 	int			interval;
    175 
    176 	/* Filled by HC driver. */
    177 	const struct usbd_pipe_methods *methods;
    178 };
    179 
    180 struct usbd_xfer {
    181 	struct usbd_pipe       *pipe;
    182 	void		       *priv;
    183 	void		       *buffer;
    184 	u_int32_t		length;
    185 	u_int32_t		actlen;
    186 	u_int16_t		flags;
    187 	u_int32_t		timeout;
    188 	usbd_status		status;
    189 	usbd_callback		callback;
    190 	volatile u_int8_t	done;
    191 	u_int8_t		busy_free;	/* used for DIAGNOSTIC */
    192 #define XFER_FREE 0x46
    193 #define XFER_BUSY 0x55
    194 #define XFER_ONQU 0x9e
    195 
    196 	/* For control pipe */
    197 	usb_device_request_t	request;
    198 
    199 	/* For isoc */
    200 	u_int16_t		*frlengths;
    201 	int			nframes;
    202 
    203 	/* For memory allocation */
    204 	struct usbd_device     *device;
    205 	usb_dma_t		dmabuf;
    206 
    207 	u_int8_t		rqflags;
    208 #define URQ_REQUEST	0x01
    209 #define URQ_AUTO_DMABUF	0x10
    210 #define URQ_DEV_DMABUF	0x20
    211 
    212 	SIMPLEQ_ENTRY(usbd_xfer) next;
    213 
    214 	void		       *hcpriv; /* private use by the HC driver */
    215 	u_int8_t		hcflags; /* private use by the HC driver */
    216 #define UXFER_ABORTING	0x01	/* xfer is aborting. */
    217 #define UXFER_ABORTWAIT	0x02	/* abort completion is being awaited. */
    218 
    219 	usb_callout_t		timeout_handle;
    220 };
    221 
    222 void usbd_init(void);
    223 void usbd_finish(void);
    224 
    225 #ifdef USB_DEBUG
    226 void usbd_dump_iface(struct usbd_interface *iface);
    227 void usbd_dump_device(struct usbd_device *dev);
    228 void usbd_dump_endpoint(struct usbd_endpoint *endp);
    229 void usbd_dump_queue(usbd_pipe_handle pipe);
    230 void usbd_dump_pipe(usbd_pipe_handle pipe);
    231 #endif
    232 
    233 /* Routines from usb_subr.c */
    234 int		usbctlprint(void *, const char *);
    235 void		usb_delay_ms(usbd_bus_handle, u_int);
    236 usbd_status	usbd_reset_port(usbd_device_handle, int, usb_port_status_t *);
    237 usbd_status	usbd_setup_pipe(usbd_device_handle dev,
    238 				usbd_interface_handle iface,
    239 				struct usbd_endpoint *, int,
    240 				usbd_pipe_handle *pipe);
    241 usbd_status	usbd_new_device(device_ptr_t, usbd_bus_handle, int, int, int,
    242 				struct usbd_port *);
    243 void		usbd_remove_device(usbd_device_handle, struct usbd_port *);
    244 int		usbd_printBCD(char *, size_t, int);
    245 usbd_status	usbd_fill_iface_data(usbd_device_handle, int, int);
    246 void		usb_free_device(usbd_device_handle);
    247 
    248 usbd_status	usb_insert_transfer(usbd_xfer_handle);
    249 void		usb_transfer_complete(usbd_xfer_handle);
    250 void		usb_disconnect_port(struct usbd_port *, device_ptr_t);
    251 
    252 /* Routines from usb.c */
    253 void		usb_needs_explore(usbd_device_handle);
    254 void		usb_needs_reattach(usbd_device_handle);
    255 void		usb_schedsoftintr(struct usbd_bus *);
    256 
    257 /*
    258  * XXX This check is extremely bogus. Bad Bad Bad.
    259  */
    260 #if defined(DIAGNOSTIC) && 0
    261 #define SPLUSBCHECK \
    262 	do { int _s = splusb(), _su = splusb(); \
    263              if (!cold && _s != _su) printf("SPLUSBCHECK failed 0x%x!=0x%x, %s:%d\n", \
    264 				   _s, _su, __FILE__, __LINE__); \
    265 	     splx(_s); \
    266         } while (0)
    267 #else
    268 #define SPLUSBCHECK
    269 #endif
    270 
    271 /* Locator stuff. */
    272 
    273 #if defined(__NetBSD__)
    274 #include "locators.h"
    275 #elif defined(__FreeBSD__) || defined(__OpenBSD__)
    276 /* XXX these values are used to statically bind some elements in the USB tree
    277  * to specific driver instances. This should be somehow emulated in FreeBSD
    278  * but can be done later on.
    279  * The values are copied from the files.usb file in the NetBSD sources.
    280  */
    281 #define UHUBCF_PORT_DEFAULT -1
    282 #define UHUBCF_CONFIGURATION_DEFAULT -1
    283 #define UHUBCF_INTERFACE_DEFAULT -1
    284 #define UHUBCF_VENDOR_DEFAULT -1
    285 #define UHUBCF_PRODUCT_DEFAULT -1
    286 #define UHUBCF_RELEASE_DEFAULT -1
    287 #endif
    288 
    289 #if defined (__OpenBSD__)
    290 #define	UHUBCF_PORT		0
    291 #define	UHUBCF_CONFIGURATION	1
    292 #define	UHUBCF_INTERFACE	2
    293 #define	UHUBCF_VENDOR		3
    294 #define	UHUBCF_PRODUCT		4
    295 #define	UHUBCF_RELEASE		5
    296 #endif
    297 
    298 #define	uhubcf_port		cf_loc[USBDEVIFCF_PORT]
    299 #define	uhubcf_configuration	cf_loc[USBDEVIFCF_CONFIGURATION]
    300 #define	uhubcf_interface	cf_loc[USBDEVIFCF_INTERFACE]
    301 #define	uhubcf_vendor		cf_loc[USBDEVIFCF_VENDOR]
    302 #define	uhubcf_product		cf_loc[USBDEVIFCF_PRODUCT]
    303 #define	uhubcf_release		cf_loc[USBDEVIFCF_RELEASE]
    304 #define	UHUB_UNK_PORT		USBDEVIFCF_PORT_DEFAULT /* wildcarded 'port' */
    305 #define	UHUB_UNK_CONFIGURATION	USBDEVIFCF_CONFIGURATION_DEFAULT /* wildcarded 'configuration' */
    306 #define	UHUB_UNK_INTERFACE	USBDEVIFCF_INTERFACE_DEFAULT /* wildcarded 'interface' */
    307 #define	UHUB_UNK_VENDOR		USBDEVIFCF_VENDOR_DEFAULT /* wildcarded 'vendor' */
    308 #define	UHUB_UNK_PRODUCT	USBDEVIFCF_PRODUCT_DEFAULT /* wildcarded 'product' */
    309 #define	UHUB_UNK_RELEASE	USBDEVIFCF_RELEASE_DEFAULT /* wildcarded 'release' */
    310 
    311